Stopping mechanism for looms



(No Model.)

' J. HAYES. STOPPING MECHANISM FOR LOOMS.

No. 458,624. Patented Sept. 1,1891.

t\n will m1 E i UNITED STATES PATENT OFFICE.

JOHN HAYES, OF FALL RIVER, MASSACHUSETTS.

STOPPING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 458,624, datedSeptember 1, 1891.

Application filed March 1 3, l 891.

To all whom it may concern.-

Be it known that I, JOHN HAYES, a citizen of the United States, residingat Fall River, in the county of Bristol and State of Massaohusetts, haveinvented certain new and useful Improvements in Stopping Mechanism forLooms; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to stop-motion for looms, and aims to provide asimple and efficient device for instantly stopping the machinein theevent of the thread breaking.

The improvement consists of the novel features and the peculiarconstruction and com bination of the parts which hereinafter will morefully appear, and be designated in the appended claims.

In the drawings, Figure l is a perspective view of portion of a loom ofordinary construction embodying myinvention. Fig. 2 is a transversesection. Fig. 3 is a top plan View of the stop-motion, showing theoperation of the same in dotted lines.

The loom is of ordinary construction, and is provided with the usualmechanism for starting and stopping, the lever Abeing provided andconnected with the said mechanism to actuate the same at the propel-timeto throw the machine in and out of gear.

The frame of the machine comprises the side pieces B and B, suitablecross-bars O, the yarn-beam D, and the breast-beam E. The leashes orharness F is suspended from the beam G by means of the strings, wires,or rods f in any well-known manner, and is operated in the usual way.The main shaft I is pro Vided with the cam t', on which the end of themonkey-tail J rides. The plate K, provided with the slot 70, is placedonthe breast-beam E, and is held thereon by the headed fastenings e,which pass through the slot is and enter the beam E. The weighted dog Lis piv oted between the vertical lugs 7t on the plate K and is providedat its outer end with the extension L, which is pivoted thereto by arule joint, which holds the said extension in Serial No. 384,932. (Nomodel.)

the horizontal position and permits it to turn up when struck by thevertical portion j of the monkey-tail J. The weighted end of the dog Lenters an opening in the plate 70, and its rear end is provided with thedepressioal to receive the free end of the trip-lever M, which ispivoted at its outer end to the plate N, that is projected from thebreast-bean1 E. The stop-lever O, secured at its lower end to the sidepiece B, projects vertically through the slotn in the plate N, and ispreferably elastic to operate in a positive manner to move the lever Ato stop the machine in the event of a'break. The shaft P is journalednear its ends in hangersp, depending from the breast-beam E, and has thestraight crank portion 2) and the bent end p the latter being weightedand extending in the same direction as the crank portion 1). The arms Q,projected from the shaft P, extend beneath the leashes or harness F andare counterbalanced by the crank portion pand the weighted end 29 of theshaft P. The det-ent R extends Vertically from the shaft P and has itsupper end bent and projected over the pivoted ex tension L of theweighted dog L to retain the said extension L within the path of thevertical portion j of the monkey-tail J.

hen the loom isin working order, the stoplever O is drawn to the outerend of the slot in the plate N, and is held there by a depression in theside of the slot 7t. The plate K is moved forward until the end of thetriplever M comes behind the weighted dog L. In this disposition of theparts the trip-lever passes in the rear of the stop-lever O, and thebent end of the detent R is sufficiently far above the pivoted extensionL to permit the latter to turn each time it is struck by the verticalportion j of the monkey-tail. In the event of a break in the suspendingmeans of the harness it will fall on one or the other of the arms Q, andturn the shaft P in its bearings and cause the bent end of the detent Rto engage with the pivoted extension L of the weighted dog and hold itdown. The vertical portion of the monkey-tail striking the end of theextesion L causes the plate K to move outward, which, carrying the freeend of the trip-lever M with it, disengages the stop-1ever from thenotch in the slot 01. The stoplever,being free, moves by its elasticityto the inner end of the slot 91 and effects a stopping of the machine.The weighted end of the dog L remains stationary under normalconditions, and the pivoted end L turns up when struck by the verticalportionj, except when held down by the detent R, in the mannerhereinbefore stated.

Having thus described my invention, what I claim to be new, and wish tosecure by Letters Patent, is-

1. In a stop-motion forlooms, the combination, with the shipper-lever,the trip-rod, the sliding plate K, the dog L, pivoted to the plate andhaving a pivoted extension, the monkey-tail, and cam i, of the shaft P,having a crank portion 49 and a weighted arm 19 the detent R, projectedfrom the shaft P and extending within the path of the pivoted end of thedog L, and arm Q, having connection with the said shaft, and the harnessadapted to strike arm Q should the harnesssuspending means break,substantially as shown and described.

2. In a stop motion for looms, the combination, with the slotted plateN, the levers O and M, the sliding plate K, the weighted dog pivoted tothe plate K and having a pivoted extension, and the harness, of shaft P,the con nterbalanced arms Q, projected from shaft P and extendingbeneath the harness, the detent R, which is adapted to engage with thepivoted end of the weighted dog, the monkeytail J, and the cam t',substantially as shown, and for the purpose specified.

3. In a stop-motion for looms, the combination of a slotted plate N,lovers 0 and M, sliding plate K, the weighted dog L, pivoted on theplate K and having a pivoted extension, the'monkey-tail, cam i, theharness-shaft P, having a straight crank portion 19 and having aweighted bent end 19 the arms Q, projected from the shaft P and adaptedto extend beyond the harness, and the detent R, connected with the shaftP and having its upper end bent and extended within the path of thepivoted end of the dog, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN HAYES. Vtitnesses:

JOSEPH CLIFTON, THOMAS P. Hicks.

